Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Quantas doses para o bacilo Calmette-Guérin?
 ###Tabelas: CREATE TABLE routine_immunization_schedule_for_infants (routine_immunization_schedule_for_infants_id AUTO_INCREMENT PRIMARY KEY, Vaccine VARCHAR, Minimum Age at 1st Dose VARCHAR, Number of Doses VARCHAR, Dose VARCHAR, Minimum Interval Between Doses VARCHAR, Route VARCHAR) CREATE TABLE construction_details (construction_details_id AUTO_INCREMENT PRIMARY KEY, BR No. VARCHAR, Lot No. INT, Date INT, Built at VARCHAR, Boiler type VARCHAR) CREATE TABLE largest_cities_proper_by_population (largest_cities_proper_by_population_id AUTO_INCREMENT PRIMARY KEY, Rank INT, City VARCHAR, Population VARCHAR, Definition VARCHAR, Country VARCHAR) CREATE TABLE grand_slam_doubles_performance_timeline (grand_slam_doubles_performance_timeline_id AUTO_INCREMENT PRIMARY KEY, Tournament VARCHAR, 2009 VARCHAR, 2011 VARCHAR, 2012 VARCHAR, 2013 VARCHAR) CREATE TABLE 2011_team (2011_team_id AUTO_INCREMENT PRIMARY KEY, Player VARCHAR, Position VARCHAR, School VARCHAR, Hometown VARCHAR, College VARCHAR)  
SELECT Number of Doses FROM routine_immunization_schedule_for_infants WHERE Vaccine = bacillus calmette-guérin